تقرير
The Mollow triplets under few-photon excitation
| العنوان: | The Mollow triplets under few-photon excitation |
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| المؤلفون: | Wu, Bang, Wang, Xu-Jie, Liu, Li, Huang, Guoqi, Wang, Wenyan, Liu, Hanqing, Ni, Haiqiao, Niu, Zhichuan, Yuan, Zhiliang |
| المصدر: | Optica 10, 1118 (2023) |
| سنة النشر: | 2023 |
| المجموعة: | Condensed Matter Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics, Condensed Matter - Materials Science |
| الوصف: | Resonant excitation is an essential tool in the development of semiconductor quantum dots (QDs) for quantum information processing. One central challenge is to enable a transparent access to the QD signal without post-selection information loss. A viable path is through cavity enhancement, which has successfully lifted the resonantly scattered field strength over the laser background under \emph{weak} excitation. Here, we extend this success to the \emph{saturation} regime using a QD-micropillar device with a Purcell factor of 10.9 and an ultra-low background cavity reflectivity of just 0.0089. We achieve a signal to background ratio of 50 and an overall system responsivity of 3~\%, i.e., we detect on average 0.03 resonantly scattered single photons for every incident laser photon. Raising the excitation to the few-photon level, the QD response is brought into saturation where we observe the Mollow triplets as well as the associated cascade single photon emissions, without resort to any laser background rejection technique. Our work offers a new perspective toward QD cavity interface that is not restricted by the laser background. Comment: 8 Figures and 9 Pages. Comments are welcome |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1364/OPTICA.491565 |
| الوصول الحر: | http://arxiv.org/abs/2305.12719Test |
| رقم الانضمام: | edsarx.2305.12719 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1364/OPTICA.491565 |
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